Concrete form hardware



Aug. 8, 1961 c. l. WILLIAMS CONCRETE FORM HARDWARE 2 Sheets-Sheet 1Filed June 11, 1954 2. 2/ jm/ zr, 20 g (fiesisv' lad 1227725 Aug. 8,1961 c. 1. WlLL lAMS 2,994,937

CONCRETE FORM HARDWARE Filed June 11, 1954 2 Sheets-Sheet 2 /1 [A7 AV 47Ilnited States Patent 2,994,931 CONCRETE FORM HARDWARE Chester I.Williams, 1501 Madison Ave,

Grand Rapids, Mich. Filed June 11, 1954, Ser. No. 436,024 4 Claims. (Cl.ZS-131.5)

This invention relates to improvements and construction of monolithicstructurm, such as concrete walls, floors, roadways, etc., by the use ofwire ties for assembling forms, and more particularly relates to animproved means ior fastening together not only oppositely spaced apartforms and similar objects but also for erecting forms to structuralmembers such as I-beams, channels, and the like, to form floors,roadbeds, reinforced concrete beams, and the like, and is an improvementover the wire tie disclosed and claimed in my co-pending U.S.application, Serial No. 394,090, filed November 24, 1953, now abandoned.

Prior to my invention, it was customary to use conventional forms ofhigh chairs and the like construction, well known in the concrete formart and also saddle hangers, snap-in ties, and the like for bridgedecking and sidewalk forming, and also conventional forms of coilhangers and ceiling inserts. However, with certain of theseconstructions, the hardware necessary required usually nine inches extraon the side which is extended through the form lumber for securing theform construction. It has been the usual practice in the past to breakoff and throw away this extra length of wire with the result that alarge amount ended as scrap. It is, therefore, a principal object of theinvention to provide an improved concrete form hardware which can bequickly connected to or disconnected from integrally cast portions ofthe form hardware to form the proper thickness of slabs for floors,bridge decking, sidewalks, and also reinforced beam construction.

Another object of the invention is to provide an improved form ofconcrete form hardware construction in which the thread of the rodprotrudes in the hole left by the cone spacer of the improved wire tieto insure a patch which will not drop out and will stand the Hammertest.

Still another object of the invention is to provide an improved form ofconcrete form hardware construction which requires less than threecomplete turns for removal as the member integrally cast with theconcrete utilizes a double lead thread.

Still another object of the invention is to provide an improved wedgeconstruction which is complementally formed to the detachable outer rod,so that the wedge may be used for the removal of the outer rod withoutthe requirement of the use of any wrench.

Still another object of the invention is the provision of a cone on theouter rod for spacing the sheathing of the concrete forms, and in whichthe cone is permanently aflixed on the inner end of the outer rod orunit.

Still another object of the invention is to provide an improved wire tieconstruction in which there is a substantial saving in replacement costsince only the tie rods are lost in the Wall.

Other objects or" the invention are providing concrete form hardwareconstruction in which there is no break off loss, a watertight tieconstruction, and positive disconnection substantially one inch backfrom the face of the wall or surface of the concrete construction.

A still further object of the invention is to provide concrete formconstruction having a greater factor of safety, and a concrete formhardware construction that will not pull, twist or loosen.

A further object of the invention is to provide a concrete form hardwareconstruction wherein no wrenches or tools are required for removal orinstallation.

In order to accomplish the various objects of the invention, I haveprovided as one embodiment of my improved concrete form hardware animproved form of high chair beam hanger for erecting form constructionfor pouring slabs for building constructions and the like, in which thebeams are not fireproofed, and which also may be used for slabs andreinforced beam constructions which are fireproof, and which are equallyadaptedfor the construction of forms for bridge decking and sidewalkforming. The improved beam high chair construction preferably comprisesa one-half inch tie rod supported substantially three-fourths of an inchabout the top face of an I-beam or the like construction to which areattached conventional one inch she-bolt constructions at both ends, andwhich are tapped to receive the threaded downturned ends of the tie rod.It is also within the scope of the invention to use the improved highchair beam hanger construction with improved usable outer units, and inwhich the beam hanger is similar to a conventional saddle type hangerbut supported by a simple form of high chair affixed thereto.

To the threaded ends of the inner rods, there are attached outer rods ofsuitable size, depending upon the form construction to be supported,having at their inner ends a cone permanently aflixed in place forattaching to the outer ends of the inner tie rod for correct spacing ofthe sheathing of the forms to provide the correct wall thickness or slabthickness, etc. The length of the outer reusable unit corresponds to thelumber dimensions of the form of the sheathing, studding, and walermembers, and also that of the wedge used for removal of the outer rodsand the attaching thereof to the inner tie rod. The wedge is formed witha keyhole opening for the assembly of the wedge to the outer rod, andthe slot of the wedge is complementally formed to a flattened portion ofthe outer tie rod to serve as a wrench. The inner tie rod may beprovided with ears against which the cones abut to insure exact spacingof the sheathing when the cones of the outer rods are assembled on theinner rod.

Many other objects and advantages of the construction herein shown anddescribed will be obvious to those skilled in the art from thedisclosure herein given.

To this end, my invention consists in the novel construction,arrangement, and combination of parts herein shown and described andmore particularly pointed out in the appended claims.

Referring to the accompanying drawings forming part of thespecification:

FIG. 1 is a View in elevation, partly in section, illustrating theimproved high chair beam hanger construction of this invention utilizedin the construction of floor slabs and the like for use with I-beams andthe like structure to set on the top of the flange of the beam forsupporting the form work and wherein the beams are not fireproofed;

FIG. 2 is a plan view of the high chair beam hanger of FIG. 1;

FIG. 3 is an enlarged view of the tie rod of the high chair beam hangerof FIG. 1 detachably connected to she-bolts having tapered ends;

FIG. 4 is an enlarged view in elevation of the cross tie of the highchair beam hanger of FIG. 1;

FIG. 5 is a view in perspective of a support for the cross tie of thehigh chair beam hanger of FIG. 1;

FIG. 6 is a perspective view of a modified form of support from that ofFIG. 5;

FIG. 7 is a modified form of a she-bolt for use with the high chair beamhanger of FIG. 1;

FIG. 8 is a modified form of high chair beam hanger to that of FIG. 1,utilizing a reusable outer unit and --an inch in diameter.

ner she-bolt construction afiixed to rods welded to a beam flange.

Referring more particularly to FIGS. 1 through 7of the-drawings, animproved high chair beam hanger construction 10 is shown for supportingconcrete form work 11in casting concrete slabs and the like to besupported on steel beam constructions in which the beams are notfireproofed. The form construction 11 comprises the usual sheathing 12,joists or transverse supporting members13 together with walers 14, andthese in turn are .aifixed together against the lower face of a flange15 of --an I-beam 16 to which the form construction is assembled forpouring the monolithic concrete slab construction and the like.

The high chair beam hanger construction 10 which holds the parts of theform to the flange preferably comprises a tie rod 17 which is supportedabove the upper face 18 of the I-beam by support members 19. The tie--rod, which is normally one-half inch rolled thread stock, 'is formedwith a rolled thread 20 at each end. Referring -to FIG. 4, the tie rod17 isv preferably formed cut to the required length, after which theends' are rolled threaded asat 20 and then for-med with the L-shapedends 21.

The stops 22 may be gauged from the respective L-shaped .ends 21- andformed by staking. The staked members 22, serve to gauge the inner faceof the support members '19 which are located to be positionedsubstantially contiguous to each edge 18 of the I-beam 15, FIGS. 1, 2,

-and-3.

:Refenring to FIGS. 1, 2, 5, and 6, the support members 19 arepreferably formed from flat stock substantially one-fourth by one inchand one and one-half inches long, and so punched as to locate the bottomedge of the tie rod substantially three-fourths of an inch above the topface 18 of the I-beam, FIGS. 1 and 3. The support member 19 is formed asshown in FIG. with a slotted hole 23 which may he closed to the positionshown in FIG. 2 to assemble the support members 29 in place on the tierod 17. The slot 23 for a one-half inch rolled thread tie rod 17 ispreferably formed with'a semicircular hole 24 substantially twentynine-sixty fourths of Symmetrical-shaped arcuate portions 25 correspondsubstantially to the ninety degree are for each quarter of the completedhole 26 when assem- -bled in position on the tie rod, as illustrated inFIGS. 1,

2, and 3, with the inclined edges 27, FIG. 5, abutting as at 28, FIG.l2. The slotted hole 23, shaped as shown in FIG; 5, may be assembled toits closed position as shown in FIG. 2 by placing under a press orevenclosing by hammering the free ends 29 until the hole is closed about thetie rod' 17. When assembled in this manner, the oppositely positionedstops 22 prevent any inward movement of the support member 19 on eitherend of the tie rod when mounted acrossthe upper face 18 of the I-beam asillustrated in FIGS. 1, 2, and 3. Since the completed hole 26 is arelatively tight fit, and as the rolled threaded ends 20 are larger indiameter than the tie rod, after the supporting members 19 are assembledin position they cannot be withdrawn and may be readily shipped when soassembled without fear of loss of parts of the tie rod construction.

Referring to FIG. 6, there is illustrated a modified form of supportmember 19' which is preferably formed from angular stock substantially'one-fourth'inch by one inch by one and one-half inches. 'When formed inthis slotted hole of the support member 19. The only'difference in theconstruction is instead of the bottom edge of the member 19 abutting theupper face 18 of the I-beam, the short leg 30 of the angle iron supportmember 19 serves as an extended base for the support member. The supportmember 19' is affixed to the tie rod 17 in the same manner as describedwith reference to the support member 19, and the leg 30 at each end ofthe tie rod is assembled to extend inwardly toward the center of the tierod as shown in the dotted construction 30, FIG. 3.

In using the high chair beam hanger construction, the assembled tie rod17 and its support member 19 and 19 are assembled to the upper surface18, and the members forming the form construction are assembled inposition as illustrated in FIG. 1. Holes 31 are formed in the sheathing12 through which are assembled conventional she-bolts, such as disclosedand claimed in applicants US. Patent 2,190,748, granted February 20,1940, for Securing Device for Concrete Forms and for this particularapplication it is preferred to use one inch outside diameter rod with aone-half inch standard tap for tapping a threaded hole 32 in the taperedend of the shebolt, althrough it is within the scope of the inventionthat the threaded ends 20 of the tie rod and the complementally formedthread 3-2, FIG. 7, of the she-bolt may be a double lead thread so thatsubstantially only three terms are necessary to detach and attach theshe-bolt to the ends of the tie rod. In the construction illustrated inFIGS. 1, 2, 3, and 7, a modified form of she-bolt 35 is illustratedwhich, in addition to having conventional threads 36 for attaching aclamp bracket 37 to the spaced walers 14 by a conventional wing nut38,is also formed with a flattened portion 39 which is complementallyformed to a slot in an improved wedge construction 40, as disclosed andclaimed in my co-pending application, Serial No. 394,090, filed November24, 19-5 3, for Wire Tie, now abandoned. This improved wedgeconstruction 40 is preferably formed as a casting from malleable iron,cast steel, or

semi-steel, or as a pressed steel member, or as a forging The wedge 40is preferably formed with a keyhole slot in which there is formed anopening complementally to the threaded end 36 of the she-bolt, and the'slottedportion of the keyhole slot is complementally formed to receivethe flattened portion 39. The wedge construction 40 of this constructionis a heavier construction than that of the copending application, sinceit is used with a larger diameter she-bolt than the reusable outer unitto be described with reference to certain other embodiments of theinvention to be described later.

The tapered she-bolt construction of this invention is preferably formedwith a tapered portion 41, tapering from substantially four and one-halfinches from the inner end of the rod with the taper decreasing from theone inch diameter of the rod to substantially three-fourths of an inchat the outer end. This length of taper permits the she-bolt to bereadily detached from the ends of the tie rod, leaving a conical-shapedopening which may be readily patched, and the threaded ends serving tokey the patch in position.

To detach the form construction 11 after the concrete has set, the clampbracket 37 is loosened by unloosening the wing nut 38 and after the wingnut 38 has been backed off a certain amount, a nail may be insertedthrough a hole 42 in the threaded end 36 of the she-bolt and a slot 44of the wing nut, whereupon turning of the wing nut 38 detaches theshe-bolt from the threaded end of the tie assgssr fod. In this manner,as the various she-bolts are detached, the parts of the form may bedisassembled. The forms are assembled in the reverse order. Instead ofthe clamp bracket and Wing nut construction, as shown, it is also withinthe scope of the invention to use the clamp bracket construction of myUS. Patent 2,659,125, granted Nov. 17, 1953.

Using the improved wedge construction 40, the shebolts may be detachedby using the member 40 as a wrench, tapping the handle-shaped end 45with the hand or a hammer, if necessary, until the she-bolt is loosened.The she-bolt may then be completely detached or partially unthreaded sothat it may be removed by hand after the wedge construction 40 has beendetached by sliding the wedge construction laterally with the slottedconstruction engaging the flattened portion 39 until it is moved to theright a sufi'icient amount, as viewed in FIG. 1, so that the holecomplemental to the threaded end 36 allows the wedge construction 40 tobe detached. The she-bolt 35 may then be unscrewed by hand or if it isstill not sufficiently detached, the Wedge construction may be used as awrench and the she-bolt completely detached. The form constructions 11may then be detached as the she-bolts and wedge constructions areremoved and are reassembled in the reverse order.

Referring to FIGS. 8 and 9, there is illustrated another embodiment 46of a high chair beam hanger from that of FIGS. 1 through 4. In thisembodiment, a U-shaped saddle-like hanger member 47 is supported abovethe upper flanged surface 18 of an I-beam 16 by support members 19similarly formed as described with reference to FIGS. 1 and 5, andlikewise, similarly afiixed to the transverse portion 48 of the hangerand spaced by stops 22. It is also within the scope of the inventionthat the support member 19', FIG. 6, may be used. Downwardly extendinglegs 49 are aflixed at their lower ends to coneshaped members 50. Thecone-shaped members 50 are complementally threaded to receive thethreaded ends 51 of the legs 49. Stops 52 are formed by staking the legsas illustrated to limit the inward movement of the cone-shaped members50. Reusable outer units 53 comprise an outer tie rod 54 threaded at itsinner end at 55 to the complementally threaded portion 56 of theconeshaped member 50. The conical member 50 is prevented from beingdetached from the tie rod 54 by prick punching as at 50.

The outer tie rod 54 is preferably formed from threeeighth inch hightensile steel rod or wire stock whereas the hanger construction 46 ispreferably formed from fivesixteenth inch high tensile steel rod or wirestock. The threaded portion 51 and the complementally threaded portion57 of the cone is formed with a double lead thread which only requiressubstantially three turns to detach the outer unit 53 from the ends ofthe hanger.

The outer end of the outer tie rod 54 is formed with a cylindricallyshaped button 58 and contiguous thereto is formed a flattened portion59. The button 58 is preferably integrally formed by upsetting and thelike, or it may be formed as also disclosed and claimed in myaforementioned co-pending application for Wire Tie, now abandoned. Awedge construction 60, as disclosed and claimed in the above-mentionedco-pending application, now abandoned, similar to the wedge construction40 of FIG. 1 but modified because of the smaller diameter of the outertie rod 54 to that of the she-bolt 35 is provided. The wedgeconstruction 60 is formed with a keyhole slot 61 complemental to theflattened portion 59, and the circular opening of the keyhole slot iscomplementally formed to the button 58 to permit attaching and detachingof the wedge member 60 to the outer tie rod.

The forms 62 including waler members 63 and 64 and sheathing 65 areaflixed to the bottom face of the flange after first suitably arrangingthe U-shaped saddle members 46 in position on the top flange. Thereusable outer units 53 are inserted through openings 66 in the .6sheathing, and the waler members assembled in place contiguous to theouter tie rod 54 and abutting the sheathing as illustrated in FIG. 1, sothat the wedge member 60 can extend thereacross as illustrated in FIG. 1by the wedge member 40. By rotating the wedge member 60, the conical endof the outer unit is affixed to the double lead thread 51. Although thisembodiment has been illustrated using only the waler members 62 and 63,it is also Within the scope of the invention that the outer tie rods 54may be of suitable length, if it is desired to use a form arrangementincluding, for example, longitudinally extending members comparable tothe members 13 of FIG. 1 to which are added the transverse Walers 14comparable to the waler members 63 and 64 of the form constructionillustrated in FIG. 8. After the concrete has been poured,- asillustrated in FIG. 9, it is evident that this improved form of highchair permits the concrete to be placed underneath the tie rod portion46 and the upper flange surface 18 of the I-beam 16. FIG. 9 illustratesthe beam cast within the concrete and with its outer face 67 flush. Upondetaching the outer units 53, as illustrated in the lower left portionof FIG. 9, a conical opening 68 remains in the face of the concreteportion of the depending beam which may be suitably patched, and thedouble lead thread 51 of the hanger 46 provides a suitable key to retainthe patch in place.

Referring to the lower right portion of FIG. 9, there is illustrated asimple construction or insert 69 similarly formed as the conical portion50 of the outer unit 53, though the diameters thereof may be slightlyless than that of the conical-shaped portion 50 to permit ease inassembly of the insert 69, which also has a female threaded portion 70complementally formed to the double lead thread 51 of the hanger. Thesethreads may also be a conventional single thread, if desired. Theconicalshaped insert 69 is formed with a depending portion 71, having ahole to receive either pencil-shaped rods and the like for support ofexpanded metal lathing or other forms of ceiling construction, such asmetal pan systems and acoustical systems. The insert 69 may also be usedto support a furrin g strip construction '72 in which channelshapedfurring strips 73 are leveled and supported by wire ties 74, after whichfurring strips 75 may be hung by conventional U-shaped wire hangers 76depending over the strips 73 and supporting the strips 75. Since thehigh chair beam hanger constructions 46 are suitably aligned withrespect to the I-beam 16, it is quite apparent that the furring stripconstruction 73 may be readily aligned, using either of the legs 49 formounting the furring strip construction 72. It is also possible withthis construction to permit one leg of the high chair beam constructionto support the ceiling construction, and the other leg of the hangerbracket may be used for mounting hangers in supporting water, steampiping, and electrical conduits, either suspended below the ceiling orbetween the suspended ceiling and the floor slab.

In the embodiments of FIGS. 1 and 8, there have been illustrated variousforms of hanger constructions, for pouring concrete floor slabs,partially or totally enclosing structural beams for reinforced beamconstructions for roadways, floor slabs, and the like, and forfireproofing the structural steel members. In the modified hangerconstruction of FIG. 8, the completed concrete form construction for thebeam has only been partially shown, and it is within the scope of theinvention thatt he remainder of the form may be constructed in anysuitable manner.

Referring to FIG. 10, there is illustrated a concrete form constructionincorporating certain embodiments of hanger brackets and the like forerecting bridge decking and for sidewalk forming. Sheathing 12 for theforms is preferably supported by joist members 13 and waler members 14affixed in position by the high chair beam constructions and she-boltconstructions as described with reference to the construction disclosedwith reference to 'as at 90 to the face 18 of the flange. the scope ofthe invention that the deformed tie rod may FIG. 1. It is also withinthe scope of the invention that hanger arrangements 46" and others'maybeused, if it is desired to partially or totally enclose the beam 16 toi form a reinforced concrete beam construction for the bridge decking,etc. Referring to the left hand side of 'FIG. 10, the form work 87' issuitably erected as illusshe-bolt will clear the outer edge 18' of theflange with the inner portion of the deformed tie rod 39 welded It isalso within be formed with an extended portion in order that it may behammered about the opposite edge of the flange 15.

The she-bolt 88 at its outer threaded end 91 may have attached thereto afly nut 92. It is also within the scope of the invention that the wingnut and clamp bracket construction 38 and 37 and the wedge constructionand she-bolt construction 35 may be used without departing from thescope of the invention, as well as the Clamp Bracket of myaforementioned U.S. Patent No, 2,659,125. It is thus obvious that simpleforms of tie rods and hanger brackets may be used for supportingconcrete form constructions for pouring monolithic bridge decking andthe like. With the improved construction of the hangers as illustratedin FIGS. 1 and 10 and the clamp constructions "with the walerconstruction as described, fewer hangers and clamps are required in theinstallation which reduces the cost of erecting and stripping the forms.With this 7 improved form of hanger construction which will support aneight thousand pound load, it is possible to install these hangerconstructions every eight feet on centers instead of every sixteeninches on centers as is conventionally used with saddle hangers and thelike constructions from three-sixteenths of an inch rod. When used inthis manner, it is preferred that the tie rod shall be formed preferablyfrom one-half inch high carbon tie rod stock, which is of such a size asa conventional rolled thread may be formed on the ends, and With thisone-half inch tie rod stock a one inch outside diameter high tensilestrength she-bolt is used. It is also within the scope of the inventionfor light form work to use tie rods formed from five-sixteenth inchstock of high carbon steel, and the tie rod portions of the reusableouter hangers being preferably formed from three-eighth inch high carbonstock.

It is thus evident that very simple forms of hangers have been disclosedfor erecting conventional forms of concrete form construction forpouring slab constructions and reinforced beam constructions, and forsupporting accessories for use in erecting and patching and finishing ofthe faces of various monolithic concrete surfaces.

There has also been disclosed various forms of reusable outer unitswhich decrease the cost of erecting forms and as they are preferablyformed from high tensile strength steel rods, the numbers of the formsupporting members are greatly reduced.

It is also further evident that a simple wire tie construction has beenformed in which there is no breakoff loss and in which the outer tierods or she-bolts may be 'used over and over again, so that there is asubstantial saving in replacement cost as only the inner tie rods,hanger constructions, and hook ties are lost or remain within the wall.

There is also described an improved hanger, wire tie, or waler rodconstruction which requires less than three complete turns for removalof the reusable outer units fromthe inner rod and in which there israpid adjustment without the use of a wrench or other tool, and in-which there-is exact spacing of the sheathing for the wallthicknessdesired and also-thicknesses for embedding re,

inforced concrete construction for fireproofing theintegrally caststructural'steel members. It is also to be understood that although thetie rods have been described with reference to one-half inch wire stockin certain instances and five-sixteenth inch wire stock in otherinstances, it is within the scope of the invention that any size rodsmay be used, or variations in the lengths and other dimensions of theconstruction may be used, depending upon the size of the slabs,reinforced beams, and form constructions to be assembled for the pouringthereof.

Having thus described my invention, it is obvious that variousimmaterial modifications may be made in the same without departing fromthe spirit of my invention; hence, I do not wish to be understood aslimiting myself to the exact form, construction, arrangement andcombination of parts herein shown and described, or uses mentioned.

What I claim as new and desire to secure by letters patent is:

l. A fastening device for afiixing form members to opposite sides of astructural member formed with a flange and certain of said form membersabutting a face of the flange contiguous to the edges thereof, saidfastening device including an angularly shaped member comprisingL-shaped ends and an intermediate portion for positioning the fasteningdevice with respect to the structural member for supporting the formmembers from the structural member, rectangular-shaped support membersprovided with respective openings which are aligned for rotatably andfreely mounting respective ends of the intermediate portion of saidfastening device for permitting angular movement of said fasteningdevice and laterally spaced thereon for positioning contiguous to thelongitudinal edges of the flange with the bottom edges of the supportembers abutting the upper face of the flange, and stop means forlimiting the axial movement of the support members on the intermediateportion between the respective contiguous stop means and L-shaped ends.

2. A high chair beam hanger for supporting concrete form members fromopposite sides of a structural member, comprising a rotatable tie rodportion for transversely mounting contiguous to a face of the structuremember, support means engageablewith such a face and provided withoppositely arranged openings complementally formed to the rotatable tierod portion for rotatably mounting said rotatable tie rod portion, saidrotatable tie rod portion including leg portions formed with securingmeans, and said securing means complementally formed to detach-ablyaflix longitudinally extending rcusable outer members to the free endsof said high chair beam hanger for aflixing the concrete form members toopposite sides of the structural member.

3. A high chair beam hanger for supporting concrete form members fromopposite sides of a structural member, comprising a rotatable tie rodportion for transversely mounting contiguous to a face of the structuralmember, said rotatable tie rod portion having leg portions formed withsecuring means extending downwardly contiguous to the longitudinal edgesof the structural member, said securing means complementally formed todetachably aflix longitudinally extending reusable outer members to thefree ends of said high chair beam hanger for aflixing the concrete formmembers to opposite sides of the structural member, and support meansengageable with the upper face of the structural member and providedwith oppositely arranged openings complementally formed to the rotatabletie rod portion for rotatably and freely mounting the rotatable tie rodportion upon the upper face of the structural member contiguous to theedges thereof, whereby the leg portions are supported normal to theopposite face of the structural member.

4. A high chair beam hanger for supporting concrete form members fromopposite sides of a structural mem ber, comprising a rotatable tie rodportion for transversely mounting contiguous to a face of the structuralmember, said rotatable tie rod portion being substantially U- shaped andwith the free ends thereof laterally extending and formed with securingmeans, support means for rotatably and freely mounting each end of thehanger upon a structural member, said support means formed with aslotted opening complementally shaped to the periphery of the rotatabletie rod portion upon closing of the slot upon the rotatable tie rod forloosely and rotatably mounting the rotatable tie rod portion upon thesupport, and stop means for limiting the inward axial movement of thesupport means at each end of the rotatable tie rod for locating thesupport means contiguous to the longitudinally extending edges of thestructural member and contiguous to the laterally extending free ends ofthe rotatable tie rod portion.

References Cited in the file of this patent UNITED STATES PATENTS1,463,967 Pedigo Aug. 7, 1923 1,667,252 Hawley Apr. 24, 1928 1,693,240Lampert Nov. 27, 1928 1,745,858 McCarty Feb. 4, 1930 OTHER REFERENCESRichmond Catalog Form, Ty Engineering Guide, Richmond Screw Anchor Co.Inc., 816-838 Liberty Ave., Brooklyn, N.Y., 1943, pages 9, 14, 15, 16.

Universal Catalog, Universal Form Clamp Co., 1238- 48, North KastnerAvenue, Chicago, 111., 1943, pages 8, 10, 11, 19, 30 and 36.

